What is tranexamic acid used for?

Tranexamic acid is used to help reduce bleeding when clots are breaking down too quickly. Depending on the clinical situation, it may be prescribed for heavy menstrual bleeding, bleeding around surgery or dental work, and selected bleeding after childbirth. A topical or oral form may also be discussed for melasma, but that use needs professional guidance.

The medicine supports clot stability by slowing fibrin breakdown. It does not create a clot from nothing and it does not diagnose why bleeding is happening. The correct formulation and timing depend on the problem: heavy menstrual bleeding is managed differently from a surgical bleed, and skin treatment has different considerations from gynaecological treatment. Read about [Tranexamic Acid for Heavy Bleeding](/treatments/medical-gynaecology/tranexamic-acid-for-heavy-bleeding/).

Use only the formulation and schedule supplied for your condition. Tell the prescriber about clotting problems, kidney disease, seizures, colour-vision changes, pregnancy, and hormonal medicines. Do not swap tablets for a skin product or use someone else’s prescription. Keep the package information available so a pharmacist can check the active ingredient and strength. The [Tranexamic Acid](/materials/tranexamic-acid/) overview can help you prepare for that discussion.

Urgent care is needed for chest pain, sudden breathlessness, coughing blood, fainting, or a painful swollen limb. Contact a clinician promptly if bleeding becomes heavier than expected, returns in an unusual pattern, or comes with severe pain or weakness. New visual symptoms or facial swelling after a dose also require prompt assessment.

Ask which problem the medicine is treating, how long the course should last, what improvement to expect, and which symptoms mean you should stop and seek help. If melasma is the concern, ask about alternatives and why the chosen formulation suits your skin and medical history.